manley



Feb. 3, 1931. R. E. MANLEY 1,791,072

BRAKE BAND DRILLING MACHINE l Filed May 31, 1924 2 Sl'xeets-Sheerl l JZ fa" 67 'if mi!!! gnou/woz:

Feb. 3, 1931. R. E. MANITEY 1,791,072

BRAKE BAND DRILLING MACHINE Filed may s1, 1.924 2 shets-sheet 2 UNITED sm Patented Feb. 3, 1931 frNflf {OFFC Y 1 ROBERT E. MANLEY,l oF YORK, PENNSYLVANIA, AssIeNoIt fio iv'IANLEY .MANUFACTUR- ,ING COMPANY, or YORK, PENNSYLVANIA, A coarortA'rizoN oF. DELAWARE BRAKE-BAND-DRILLING MACHINE Appiimimisiedv Mayv 31, 1924. 's'eriai No. 716,949.`

This invention lrelatesto a device forreadily and conveniently drilling brake band linings for the receptionof'the usual rivets and throigh the drill shaft.

'tion of the device.

Other and further objectsof the Apresent invention will be apparent ,from the descrip- :tion 4followingand are particularly set forth in tlieclaims. o

Inthe `dra-wings: 1 Fig. 1 is a side elevation showingV the entire device Fig. V2 is a top plan view;v and Fig. 3 is an end view of `the vforward porpartly Y inf section Fie. 4 -is a transverse vertical section The .main frame of the inachiiieis num hered 10 in the drawingsl and .consists of a support having laterally extending feetfll by `which the device may loe attached near the edge of a table or other support,or as shown in the drawings these .feet 11 may Aloe .bolted to similar feet 12 on a standard 13 having at fits 'lower end La floor *engaging base 14,` the structure Vshown forming a veryfconvenient unit of easy portability; The frame 10 has :hearings 1%1v for the primary shaft 15V and similar hearings 16 for the drill shaft-17,

eachl of these shafts :lacing vertical and parallel. The frame j10V Valsokcarries a pairof i bearings 19 to receive slidablythe guide rods 2O which support the horn or bed 21,V which serves as a rest for the brake band, the metal portion of which is denoted 22 and theilining23. The primary shaft 15 carries apulley25 spaced awayv from the frame but in engagement at its top with a bushing 2f?, having a cylindrical portion itted to the iframe and fr rotatively receiving the primaryshaft 15,

.and also having an integral radially extend- .rin-g flange V28 .resting ofn the frame andsupit porting on its 'uppersurfaice a pulley 29 sethe frame and rotatively'receiving the spina dle or sli-aft 17 This bushinglilre the .corresponding one for the primary shaft eX-l cured to the primary shaft 15 by any desiredv means such as the-set screw 30.' vIt is olo vious lthe pulley 29 may he integral with the shaft 15, in which .case it would simply be a circular head on the shaft, but I prefer the o.

details as shown and utilize the pulley 29 to drive the mechanism .in such casesWhere it ismore convenient to permanently inountthe drill with respect to afpriine mover.

y lnoi'deri to have .thefdeviee self-contained '56 and portable7 prefer to mount a post .-at one endof the ,fiaineand to secureitothis 4post a'yole 33 intov the slot-,ted armsofwhicli 'I secure-the ends o f an adjustable nband 35,

. to each end of which l rivet a: bolt ,prefer-I` 'ably fitted with wingnutsasshown for ready and convenient detachment ofthe l'band and the motor ydrill 38 held thereby.l This motor drill is of standard type andhas aheXagonal .correspondingly angled V of the yoke. While the yoke may loe adjustedl ul'aand downlon the post, no" such adjustment is actually used `iin practice "after the drill ,isI once fitted, and to release the motor drill it .is only necessary-to unfastenY one of the wing nuts 40 suiiciently to allow its boltV 411 to slipout of theslot 12in the arm 38.' 7h-ile theoretically it isV possible to arrange .the axis ofthe motor `co-aiziaily'with ythe Vcentra-l body portion39.fittingnicely in'v the i axis of the primary shaft 15, this is extremely difficult in practice,and for-thisieason pio- Y ride-aplurality of recesses 44 in thepulley 29 and I secure to the clutch el'o'f the iiiotoii Y a disc- Lilie :inemher'd' liaviiiga plurality-of y lugs f 48, each fitting loosely :in one V'of theA 111% so that :the ldiscdike member el? and tie pulley-.29 forml iii `eiect a universal Vjoint which-hasproven Vextremelyuseful `in practice. -1 l The drill shaftjl'? has a head() ri'di'ngvon the horizontal iiange 51 of a sleeveexactly l i' to thel sleeve 17 andhaving its `cyy si .y

cal porti-on A52 Yin Yfriction Contact with tends below. the level of the `frame and .en-

the upper-horizontal surface. .of the pulley ah'fwhiclil is connected to thedriving position by means ofy a set screw 61 and isV itself countcrbored to receive the drill bit 62, likewise held in adjusted position by a set screw G3. ln order to avoid the crossing of the belt 55 and also to secure otherdesired advantages T utilize a left-handed counter-sink and drill. This allows me to use a standard motor drill and to maintain rilse adisoli the drill and of the motor parallel.

The bed 2l consists of a rectangular body portion `having a central hole 65 therein to receive the drill and counterbore and also a plurality of holes 66 tapped to receive the threaded Yend of the shouldered guide rods 20. l find it convenient to provide concentric grooves 67 in thebottom of the bed coaxial with the tapped holes 66 and to utilize ley the metal from these grooves in extending the sleeves GPKbelow the level 'o f. the bottom vof the bed where they are engaged with thel largerk Vportions of the guide rods ,20, the

grooves 67 serving as anchoring recesses for theV helical springs 70.` The tie plate 7l secured to the two guide rods 20 by means of the bolts 72 is for the purpose of strength,

as it, with the bed Ql'andthe guide rods,

form a. rect-angular frame. The foot operated lever 74. connected to one of the guide l rods 2O by means of the link 75 and gear 76 is optional, but is convenient in case the standard 13 is-used, and it may be used when the frame is mounted on a table as well, although sonie users prefer to depress the bed by hand which is very easy since the metal band extends laterally frein-the table furnishing a convenient hand-hold and renders v the depression of the horn quite simple.

At the rear end of thebed I Amount a bracket or post 79, which adjustably receives a horizontal rod 80, onl which is slidably mounted a sleeve Slin which is mounted a stop member 82 having a plane vertical face S3. against which the steelf portion22 of the brake band is placed, this serving to register one of the-two series of holes in registry Vil() with the drill 62. A locating indicator S-lis mounted on the rod S2. `This indicator has at its lower end arforl; Srby means of which the holes inthe `brake band may be brought into exactfregi'stry with the drill no matter what particular size of drill is used. In order to accomplish this, the bedlislowered so that the drill projects well above `the bed. The

locating vindicator 8eisnow moved until the' drill bit is in centactwith each of the'two sloping sidesof the V of the fork andthe set screws 88 and 89 are now secured in place. The brake band itself may next be placed on the bed, the top of which may be either plane or'curved and with the edges of the brake band at right angles to the line between the holes 65 and 66. `lt-isnow convenient to move up the stop member 82 into contactwith the metal edge of the brake band, as in so doing all of the holes of that series, and of the other series as well, when the band'is reversed, are brought in proper fore'and aft relation to the bed so that all the operator `need do is to move the band laterally to adjust for each individual hole.

To operate, a band is placed on the bed Sl and after adjustment as just described the bed is depressed into contact with the stop member 9() held in proper position by a locknut 91 on the frame, the depression of the bed causing the drill to lirst pass through the lining and then pass snugly through the existing hole in the metal portion of the band, while the countersink reams the lining tothe proper depth to bury the rivet head.

. Vilhat l claim is: p Y A l. In a brake band drill, a drill, meansfor rotating said drill, avbed having an opening for such drill, guiding means Yfor holding said bed constantly normal to the axis. of the drill and a locating indicator adjustably mounted with respect to. said bed, movable therewith, and positioned to one side of the axis of said drill.

2. ln a deviceY for` drilling automobile brake bands, a frame and shouldered shaft rotatably'mounted in said frame, a pulley mounted on said shaft beneath said frame, a bushing between said shaft and said frame 'contactingy with said pulley beneath the lower surface'of the frame and having a radially extending flange extending between the head of said shaft and said frame, a drill ,carried Vby said shaft and means for supplying power to said pulley;

Y 3.111 a device for drilling automobile brake bands, a drill, a bed movable toward and away fromv said drill and having an opening therein to receive said' drill and having a plurality of annular' grooves there1n,a sleeve integral with said bed and lco-axial j'with each of said grooves and forming the inner wall thereof, said sleeves each eXtending beyond'the lowersurfaceof said bed, a

`.frame in which said drill is supported, a plurality' of YshoulderedV guide rods slidably mounted'in said frame and each engaging one of said sleeves and-acoiled spring surrounding eachguide rod and fitting within saidgro'oves, for'resilicntly holding said away from said-frame.

In abed for a brake band drilling machineV consisting of. amain body portion having an opening thereinto receive a drill, a

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support at o ne end vo'f-saidv body portion, a

stop member adjustably carried by said support, and a locating indicator adjustably Y mounted on said support for indicating the axis of the hole for the drill and countersink,- wlien said hole is hidden by a brake band to be drilled. Y

5. In a device of the character described a drill, an indicator above and to one side of said drill, means for supporting `a brake band between said drill and indicator, said means being movable with respect to said drill.

ROBERT E. MANLEY.y

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